diff --git a/internal/storage/binlog_writer.go b/internal/storage/binlog_writer.go
index 1c0cd65bc9..6f36993d75 100644
--- a/internal/storage/binlog_writer.go
+++ b/internal/storage/binlog_writer.go
@@ -27,7 +27,7 @@ const (
 	ServerVersion = 1
 )
 
-// BinlogType is to distinguish diffrent files saving diffrent data.
+// BinlogType is to distinguish different files saving diffrent data.
 type BinlogType int32
 
 const (